Author: kmcjana

More than a decade after shark mislabeling was first highlighted in Brazil (1), generic commercial names such as caçao (2–4), galeos (5), rock salmon and huss (6), flake (7), palombo (8), tollo, and cazón (9) continue to obscure shark species identity worldwide. DNA-based surveys repeatedly reveal that products sold under these names comprise multiple shark species, including threatened and internationally regulated taxa (2–12). Although these commercial names differ among countries, they produce the same outcome: species identity is progressively lost as shark products move from capture to consumption, precisely where fisheries management, wildlife trade regulation, sustainability claims, and informed consumer choice depend on it.

When a disease outbreak occurs, sequencing the responsible pathogen and posting its genome to a public database facilitates research into diagnostic tests and vaccines. However, the benefits of sharing genomic data quickly and widely are not equally shared. Many outbreaks begin in lower-income countries (1), where health workers and scientists collect samples and generate sequences that are then used by well-resourced institutions to create proprietary tests, therapeutics, and patents (2). When there is little return for sharing data, countries may decide to share less [as Indonesia did in 2006 (3)], making the equity problem a security problem as well. Member states of the World Health Organization (WHO) adopted the Pandemic Agreement in 2025 (4), and they are now negotiating an annex called Pathogen Access and Benefit Sharing (PABS) (5). The current terms of the annex will help in emergencies but overlook the steps required to establish enduring equitable practices.

Prior expectations guide attention and support perceptual filtering during decision-making. In mice performing a visual discrimination task, choices depended on trial-by-trial differences between consecutive stimuli (|ΔDir|). We hypothesized that ...

Memories leave lasting physical changes at the synaptic level. Although stable, larger spines are thought to support memory, the high turnover of dendritic spines and the drifting of neuronal representations after memory formation suggest alternative ...

Plasmodium falciparum sporozoite vaccines, in which parasites are attenuated at the liver stage, provide high efficacy but require complex manufacture and intravenous administration of high sporozoite doses. We found that a single low-dose P. berghei ...

Hypertension is a leading cause of disease burden and mortality. Here, we present a single-cell analysis of hypertension and end-organ damage across six organs and tissues in angiotensin II–treated mice, Dahl salt–sensitive rats, and spontaneously ...

The formation of metaphase chromosomes requires the activity of condensins, DNA translocases that reduce chromosomal length through the process of loop extrusion. Reduction of length, however, does not account for the increase in density of chromatin in ...

Nature, Published online: 13 August 2026; doi:10.1038/s41586-026-10959-w Author Correction: Structural mechanism of cGAS inhibition by the […]

Nature, Published online: 13 August 2026; doi:10.1038/s41586-026-10960-3 Author Correction: Cretaceous bird from Brazil informs the evolution […]

Nature, Published online: 13 August 2026; doi:10.1038/d41586-026-01904-y Sexist assumptions and a male-dominated culture can make it […]